Abstract
Two field experiments were carried out at Batra village, Talkha district, in Dakahlia Governorate, Egypt, during the winter growing seasons of 2012/2013 and 2013/2014. The experimental design was split plot with three replications. The aim of this research was to evaluate the effect of nitrogen fertilization level, foliar spraying of mixed (Fe, Zn & Mn) and their interactions on potato crop, quality; NPK uptake and N use efficiency. The main plots were assigned for nitrogen levels (0, 150, 175, 200 and 225 kg N fed.-1), but the sub plots were devoid for foliar mixed Fe, Zn and Mn sulfates at the ratio 2:1:1 (at the rate: 0, 1.25 & 2.5 g L-1). Application of N-levels significantly increased average weight of tuber, total tuber yield and shoot dry yield while foliar application of Fe, Zn and Mn mixture treatments induced significant increases in both tuber and shoot yield only. The interaction effect of N level and macronutrients on the above mentioned parameters was not significant except the average weight of tuber which showed significant effect in the first season only and application of 200 kg N fed.-1 combined with T3 recorded the heaviest tubers (219.0 and 229.2g) for the first and the second seasons, respectively. Dry matter, protein and starch % in tubers were significantly affected by N levels and foliar applied micronutrients, while the interaction showed no significant effect. The uptake of N, P and K was significantly increased with increasing N-levels and micronutrient concentration while the interaction effect was not significant. The values of N utilization efficiency and N uptake efficiency were decreased with increasing of N-levels. whereas N-level of 200 kg N fed.-1 recorded the highest percentage of N apparent recovery fraction in both seasons. The interactions between N-levels and foliar Fe, Zn and Mn treatments affected N utilization efficiency, N uptake efficiency and N apparent recovery fraction% and the highest percentage of N apparent recovery fraction were 37.13 and 40.55 % in 1st and 2nd season, respectively with the interaction of N level (175 and 200 kg N fed.-1, respectively) and foliar Fe, Zn and Mn treatment at 1.25g L-1.
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Claims 12
Claim · model-written summary
Increasing nitrogen levels significantly increased average tuber weight, total tuber yield and shoot dry yield of potato.
- Taxon
- potato
Solanum tuberosume0 - Treatment
- N-levelse1
- Outcome
- average weight of tuber, total tuber yield and shoot dry yielde1
- Direction
- significantly increasede1
- Setting
- Batra village, Talkha district, in Dakahlia Governorate, Egypte2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on potato crop”
e1“Application of N-levels significantly increased average weight of tuber, total tuber yield and shoot dry yield”
e2“Two field experiments were carried out at Batra village, Talkha district, in Dakahlia Governorate, Egypt”
Claim · model-written summary
Foliar application of Fe, Zn and Mn increased tuber and shoot yield of potato only.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- foliar application of Fe, Zn and Mn mixture treatmentse1
- Outcome
- tuber and shoot yielde1
- Direction
- significant increasese1
- Qualifier
- onlye1
- Setting
- Batra village, Talkha district, in Dakahlia Governorate, Egypte2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on potato crop”
e1“foliar application of Fe, Zn and Mn mixture treatments induced significant increases in both tuber and shoot yield only”
e2“Two field experiments were carried out at Batra village, Talkha district, in Dakahlia Governorate, Egypt”
Claim · model-written summary
200 kg N per feddan combined with T3 gave the heaviest tubers of potato, 219.0 g and 229.2 g in the first and second seasons.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- application of 200 kg N fed.-1 combined with T3e1
- Outcome
- average weight of tubere1
- Direction
- heavieste1
- Value
- 219.0 and 229.2ge1
- Setting
- Batra village, Talkha district, in Dakahlia Governorate, Egypte2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on potato crop”
e1“except the average weight of tuber which showed significant effect in the first season only and application of 200 kg N fed.-1 combined with T3 recorded the heaviest tubers (219.0 and 229.2g) for the first and the second seasons, respectively”
e2“Two field experiments were carried out at Batra village, Talkha district, in Dakahlia Governorate, Egypt”
Claim · model-written summary
N levels and foliar micronutrients significantly affected dry matter, protein and starch % in potato tubers.
- Taxon
- potatoSolanum tuberosume0
- Organ / stage
- tuberse1
- Treatment
- N levels and foliar applied micronutrientse1
- Outcome
- Dry matter, protein and starch %e1
- Setting
- Batra village, Talkha district, in Dakahlia Governorate, Egypte2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on potato crop”
e1“Dry matter, protein and starch % in tubers were significantly affected by N levels and foliar applied micronutrients”
e2“Two field experiments were carried out at Batra village, Talkha district, in Dakahlia Governorate, Egypt”
Claim · model-written summary
The interaction of N levels and foliar micronutrients had no significant effect on tuber dry matter, protein and starch %.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- N levels and foliar applied micronutrientse1
- Outcome
- Dry matter, protein and starch %e1
- Direction
- no significant effecte1
- Qualifier
- the interactione1
- Setting
- Batra village, Talkha district, in Dakahlia Governorate, Egypte2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on potato crop”
e1“Dry matter, protein and starch % in tubers were significantly affected by N levels and foliar applied micronutrients, while the interaction showed no significant effect”
e2“Two field experiments were carried out at Batra village, Talkha district, in Dakahlia Governorate, Egypt”
Claim · model-written summary
Uptake of N, P and K significantly increased with increasing N levels and micronutrient concentration.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- increasing N-levels and micronutrient concentratione1
- Outcome
- uptake of N, P and Ke1
- Direction
- significantly increasede1
- Setting
- Batra village, Talkha district, in Dakahlia Governorate, Egypte2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on potato crop”
e1“The uptake of N, P and K was significantly increased with increasing N-levels and micronutrient concentration while the interaction effect was not significant”
e2“Two field experiments were carried out at Batra village, Talkha district, in Dakahlia Governorate, Egypt”
Claim · model-written summary
The interaction effect on uptake of N, P and K was not significant.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- N-levels and micronutrient concentratione1
- Outcome
- uptake of N, P and Ke1
- Direction
- not significante1
- Qualifier
- the interaction effecte1
- Setting
- Batra village, Talkha district, in Dakahlia Governorate, Egypte2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on potato crop”
e1“The uptake of N, P and K was significantly increased with increasing N-levels and micronutrient concentration while the interaction effect was not significant”
e2“Two field experiments were carried out at Batra village, Talkha district, in Dakahlia Governorate, Egypt”
Claim · model-written summary
N utilization efficiency and N uptake efficiency decreased with increasing N levels.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- increasing of N-levelse1
- Outcome
- N utilization efficiency and N uptake efficiencye1
- Direction
- decreasede1
- Setting
- Batra village, Talkha district, in Dakahlia Governorate, Egypte2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on potato crop”
e1“The values of N utilization efficiency and N uptake efficiency were decreased with increasing of N-levels”
e2“Two field experiments were carried out at Batra village, Talkha district, in Dakahlia Governorate, Egypt”
Claim · model-written summary
N level of 200 kg N per feddan gave the highest N apparent recovery fraction in both seasons.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- N-level of 200 kg N fed.-1e1
- Outcome
- percentage of N apparent recovery fractione1
- Direction
- higheste1
- Qualifier
- in both seasonse1
- Setting
- Batra village, Talkha district, in Dakahlia Governorate, Egypte2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on potato crop”
e1“whereas N-level of 200 kg N fed.-1 recorded the highest percentage of N apparent recovery fraction in both seasons”
e2“Two field experiments were carried out at Batra village, Talkha district, in Dakahlia Governorate, Egypt”
Claim · model-written summary
Interactions of N levels and foliar Fe, Zn and Mn affected N utilization efficiency, N uptake efficiency and N apparent recovery fraction.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- N-levels and foliar Fe, Zn and Mn treatmentse1
- Outcome
- N utilization efficiency, N uptake efficiency and N apparent recovery fraction%e1
- Setting
- Batra village, Talkha district, in Dakahlia Governorate, Egypte2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on potato crop”
e1“The interactions between N-levels and foliar Fe, Zn and Mn treatments affected N utilization efficiency, N uptake efficiency and N apparent recovery fraction%”
e2“Two field experiments were carried out at Batra village, Talkha district, in Dakahlia Governorate, Egypt”
Claim · model-written summary
The highest N apparent recovery fraction, 37.13% and 40.55% in the first and second seasons, occurred with 175 and 200 kg N per feddan and foliar Fe, Zn and Mn at 1.25 g/L.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- N level (175 and 200 kg N fed.-1, respectively) and foliar Fe, Zn and Mn treatment at 1.25g L-1e1
- Outcome
- percentage of N apparent recovery fractione1
- Direction
- higheste1
- Value
- 37.13 and 40.55 %e1
- Setting
- Batra village, Talkha district, in Dakahlia Governorate, Egypte2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on potato crop”
e1“the highest percentage of N apparent recovery fraction were 37.13 and 40.55 % in 1st and 2nd season, respectively with the interaction of N level (175 and 200 kg N fed.-1, respectively) and foliar Fe, Zn and Mn treatment at 1.25g L-1”
e2“Two field experiments were carried out at Batra village, Talkha district, in Dakahlia Governorate, Egypt”
Claim · model-written summary
The interaction effect of N level and macronutrients on the above mentioned parameters was not significant.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- N level and macronutrientse1
- Outcome
- the above mentioned parameterse1
- Direction
- not significante1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“on potato crop”
e1“The interaction effect of N level and macronutrients on the above mentioned parameters was not significant”
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